8817948401 has 2 divisors, whose sum is σ = 8817948402. Its totient is φ = 8817948400.

The previous prime is 8817948397. The next prime is 8817948421. The reversal of 8817948401 is 1048497188.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5020431025 + 3797517376 = 70855^2 + 61624^2 .

It is a cyclic number.

It is not a de Polignac number, because 8817948401 - 2² = 8817948397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8817948401.

It is not a weakly prime, because it can be changed into another prime (8817948421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4408974200 + 4408974201.

It is an arithmetic number, because the mean of its divisors is an integer number (4408974201).

Almost surely, 2^8817948401 is an apocalyptic number.

It is an amenable number.

8817948401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8817948401 is an equidigital number, since it uses as much as digits as its factorization.

8817948401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 8817948401 is about 93903.9317653952. The cubic root of 8817948401 is about 2065.9628972269.

The spelling of 8817948401 in words is "eight billion, eight hundred seventeen million, nine hundred forty-eight thousand, four hundred one".